2 * WPA Supplicant / Network configuration structures
3 * Copyright (c) 2003-2013, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 #include "common/defs.h"
13 #include "utils/list.h"
14 #include "eap_peer/eap_config.h"
16 #define MAX_SSID_LEN 32
19 #define DEFAULT_EAP_WORKAROUND ((unsigned int) -1)
20 #define DEFAULT_EAPOL_FLAGS (EAPOL_FLAG_REQUIRE_KEY_UNICAST | \
21 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)
22 #define DEFAULT_PROTO (WPA_PROTO_WPA | WPA_PROTO_RSN)
23 #define DEFAULT_KEY_MGMT (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X)
24 #define DEFAULT_PAIRWISE (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP)
25 #define DEFAULT_GROUP (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | \
26 WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)
27 #define DEFAULT_FRAGMENT_SIZE 1398
29 #define DEFAULT_BG_SCAN_PERIOD -1
30 #define DEFAULT_DISABLE_HT 0
31 #define DEFAULT_DISABLE_HT40 0
32 #define DEFAULT_DISABLE_SGI 0
33 #define DEFAULT_DISABLE_LDPC 0
34 #define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
35 #define DEFAULT_AMPDU_FACTOR -1 /* no change */
36 #define DEFAULT_AMPDU_DENSITY -1 /* no change */
38 struct psk_list_entry {
46 * struct wpa_ssid - Network configuration data
48 * This structure includes all the configuration variables for a network. This
49 * data is included in the per-interface configuration data as an element of
50 * the network list, struct wpa_config::ssid. Each network block in the
51 * configuration is mapped to a struct wpa_ssid instance.
55 * next - Next network in global list
57 * This pointer can be used to iterate over all networks. The head of
58 * this list is stored in the ssid field of struct wpa_config.
60 struct wpa_ssid *next;
63 * pnext - Next network in per-priority list
65 * This pointer can be used to iterate over all networks in the same
66 * priority class. The heads of these list are stored in the pssid
67 * fields of struct wpa_config.
69 struct wpa_ssid *pnext;
72 * id - Unique id for the network
74 * This identifier is used as a unique identifier for each network
75 * block when using the control interface. Each network is allocated an
76 * id when it is being created, either when reading the configuration
77 * file or when a new network is added through the control interface.
82 * priority - Priority group
84 * By default, all networks will get same priority group (0). If some
85 * of the networks are more desirable, this field can be used to change
86 * the order in which wpa_supplicant goes through the networks when
87 * selecting a BSS. The priority groups will be iterated in decreasing
88 * priority (i.e., the larger the priority value, the sooner the
89 * network is matched against the scan results). Within each priority
90 * group, networks will be selected based on security policy, signal
93 * Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
94 * not using this priority to select the order for scanning. Instead,
95 * they try the networks in the order that used in the configuration
101 * ssid - Service set identifier (network name)
103 * This is the SSID for the network. For wireless interfaces, this is
104 * used to select which network will be used. If set to %NULL (or
105 * ssid_len=0), any SSID can be used. For wired interfaces, this must
106 * be set to %NULL. Note: SSID may contain any characters, even nul
107 * (ASCII 0) and as such, this should not be assumed to be a nul
108 * terminated string. ssid_len defines how many characters are valid
109 * and the ssid field is not guaranteed to be nul terminated.
114 * ssid_len - Length of the SSID
121 * If set, this network block is used only when associating with the AP
122 * using the configured BSSID
124 * If this is a persistent P2P group (disabled == 2), this is the GO
130 * bssid_set - Whether BSSID is configured for this network
135 * go_p2p_dev_addr - GO's P2P Device Address or all zeros if not set
137 u8 go_p2p_dev_addr[ETH_ALEN];
140 * psk - WPA pre-shared key (256 bits)
145 * psk_set - Whether PSK field is configured
150 * passphrase - WPA ASCII passphrase
152 * If this is set, psk will be generated using the SSID and passphrase
153 * configured for the network. ASCII passphrase must be between 8 and
154 * 63 characters (inclusive).
159 * ext_psk - PSK/passphrase name in external storage
161 * If this is set, PSK/passphrase will be fetched from external storage
162 * when requesting association with the network.
167 * pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
172 * group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
177 * key_mgmt - Bitfield of allowed key management protocols
184 * bg_scan_period - Background scan period in seconds, 0 to disable, or
185 * -1 to indicate no change to default driver configuration
190 * proto - Bitfield of allowed protocols, WPA_PROTO_*
195 * auth_alg - Bitfield of allowed authentication algorithms
202 * scan_ssid - Scan this SSID with Probe Requests
204 * scan_ssid can be used to scan for APs using hidden SSIDs.
205 * Note: Many drivers do not support this. ap_mode=2 can be used with
206 * such drivers to use hidden SSIDs.
210 #ifdef IEEE8021X_EAPOL
211 #define EAPOL_FLAG_REQUIRE_KEY_UNICAST BIT(0)
212 #define EAPOL_FLAG_REQUIRE_KEY_BROADCAST BIT(1)
214 * eapol_flags - Bit field of IEEE 802.1X/EAPOL options (EAPOL_FLAG_*)
219 * eap - EAP peer configuration for this network
221 struct eap_peer_config eap;
222 #endif /* IEEE8021X_EAPOL */
224 #define NUM_WEP_KEYS 4
225 #define MAX_WEP_KEY_LEN 16
229 u8 wep_key[NUM_WEP_KEYS][MAX_WEP_KEY_LEN];
232 * wep_key_len - WEP key lengths
234 size_t wep_key_len[NUM_WEP_KEYS];
237 * wep_tx_keyidx - Default key index for TX frames using WEP
242 * proactive_key_caching - Enable proactive key caching
244 * This field can be used to enable proactive key caching which is also
245 * known as opportunistic PMKSA caching for WPA2. This is disabled (0)
246 * by default unless default value is changed with the global okc=1
247 * parameter. Enable by setting this to 1.
249 * Proactive key caching is used to make supplicant assume that the APs
250 * are using the same PMK and generate PMKSA cache entries without
251 * doing RSN pre-authentication. This requires support from the AP side
252 * and is normally used with wireless switches that co-locate the
255 * Internally, special value -1 is used to indicate that the parameter
256 * was not specified in the configuration (i.e., default behavior is
259 int proactive_key_caching;
262 * mixed_cell - Whether mixed cells are allowed
264 * This option can be used to configure whether so called mixed cells,
265 * i.e., networks that use both plaintext and encryption in the same
266 * SSID, are allowed. This is disabled (0) by default. Enable by
271 #ifdef IEEE8021X_EAPOL
274 * leap - Number of EAP methods using LEAP
276 * This field should be set to 1 if LEAP is enabled. This is used to
277 * select IEEE 802.11 authentication algorithm.
282 * non_leap - Number of EAP methods not using LEAP
284 * This field should be set to >0 if any EAP method other than LEAP is
285 * enabled. This is used to select IEEE 802.11 authentication
291 * eap_workaround - EAP workarounds enabled
293 * wpa_supplicant supports number of "EAP workarounds" to work around
294 * interoperability issues with incorrectly behaving authentication
295 * servers. This is recommended to be enabled by default because some
296 * of the issues are present in large number of authentication servers.
298 * Strict EAP conformance mode can be configured by disabling
299 * workarounds with eap_workaround = 0.
301 unsigned int eap_workaround;
303 #endif /* IEEE8021X_EAPOL */
306 * mode - IEEE 802.11 operation mode (Infrastucture/IBSS)
308 * 0 = infrastructure (Managed) mode, i.e., associate with an AP.
310 * 1 = IBSS (ad-hoc, peer-to-peer)
312 * 2 = AP (access point)
314 * 3 = P2P Group Owner (can be set in the configuration file)
316 * 4 = P2P Group Formation (used internally; not in configuration
319 * Note: IBSS can only be used with key_mgmt NONE (plaintext and static
320 * WEP) and WPA-PSK (with proto=RSN). In addition, key_mgmt=WPA-NONE
321 * (fixed group key TKIP/CCMP) is available for backwards compatibility,
322 * but its use is deprecated. WPA-None requires following network block
323 * options: proto=WPA, key_mgmt=WPA-NONE, pairwise=NONE, group=TKIP (or
324 * CCMP, but not both), and psk must also be set (either directly or
325 * using ASCII passphrase).
331 WPAS_MODE_P2P_GO = 3,
332 WPAS_MODE_P2P_GROUP_FORMATION = 4,
336 * disabled - Whether this network is currently disabled
338 * 0 = this network can be used (default).
339 * 1 = this network block is disabled (can be enabled through
340 * ctrl_iface, e.g., with wpa_cli or wpa_gui).
341 * 2 = this network block includes parameters for a persistent P2P
342 * group (can be used with P2P ctrl_iface commands)
347 * disabled_for_connect - Whether this network was temporarily disabled
349 * This flag is used to reenable all the temporarily disabled networks
350 * after either the success or failure of a WPS connection.
352 int disabled_for_connect;
355 * peerkey - Whether PeerKey handshake for direct links is allowed
357 * This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
360 * 0 = disabled (default)
366 * id_str - Network identifier string for external scripts
368 * This value is passed to external ctrl_iface monitors in
369 * WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
370 * environment variable for action scripts.
374 #ifdef CONFIG_IEEE80211W
376 * ieee80211w - Whether management frame protection is enabled
378 * This value is used to configure policy for management frame
379 * protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
380 * This is disabled by default unless the default value has been changed
381 * with the global pmf=1/2 parameter.
383 * Internally, special value 3 is used to indicate that the parameter
384 * was not specified in the configuration (i.e., default behavior is
387 enum mfp_options ieee80211w;
388 #endif /* CONFIG_IEEE80211W */
391 * frequency - Channel frequency in megahertz (MHz) for IBSS
393 * This value is used to configure the initial channel for IBSS (adhoc)
394 * networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
395 * the infrastructure mode. In addition, this value is only used by the
396 * station that creates the IBSS. If an IBSS network with the
397 * configured SSID is already present, the frequency of the network
398 * will be used instead of this configured value.
407 * wpa_ptk_rekey - Maximum lifetime for PTK in seconds
409 * This value can be used to enforce rekeying of PTK to mitigate some
410 * attacks against TKIP deficiencies.
415 * scan_freq - Array of frequencies to scan or %NULL for all
417 * This is an optional zero-terminated array of frequencies in
418 * megahertz (MHz) to include in scan requests when searching for this
419 * network. This can be used to speed up scanning when the network is
420 * known to not use all possible channels.
425 * bgscan - Background scan and roaming parameters or %NULL if none
427 * This is an optional set of parameters for background scanning and
428 * roaming within a network (ESS) in following format:
429 * <bgscan module name>:<module parameters>
434 * ignore_broadcast_ssid - Hide SSID in AP mode
436 * Send empty SSID in beacons and ignore probe request frames that do
437 * not specify full SSID, i.e., require stations to know SSID.
438 * default: disabled (0)
439 * 1 = send empty (length=0) SSID in beacon and ignore probe request
441 * 2 = clear SSID (ASCII 0), but keep the original length (this may be
442 * required with some clients that do not support empty SSID) and
443 * ignore probe requests for broadcast SSID
445 int ignore_broadcast_ssid;
448 * freq_list - Array of allowed frequencies or %NULL for all
450 * This is an optional zero-terminated array of frequencies in
451 * megahertz (MHz) to allow for selecting the BSS. If set, scan results
452 * that do not match any of the specified frequencies are not
453 * considered when selecting a BSS.
458 * p2p_client_list - List of P2P Clients in a persistent group (GO)
460 * This is a list of P2P Clients (P2P Device Address) that have joined
461 * the persistent group. This is maintained on the GO for persistent
462 * group entries (disabled == 2).
467 * num_p2p_clients - Number of entries in p2p_client_list
469 size_t num_p2p_clients;
471 #ifndef P2P_MAX_STORED_CLIENTS
472 #define P2P_MAX_STORED_CLIENTS 100
473 #endif /* P2P_MAX_STORED_CLIENTS */
476 * psk_list - Per-client PSKs (struct psk_list_entry)
478 struct dl_list psk_list;
481 * p2p_group - Network generated as a P2P group (used internally)
486 * p2p_persistent_group - Whether this is a persistent group
488 int p2p_persistent_group;
491 * temporary - Whether this network is temporary and not to be saved
496 * export_keys - Whether keys may be exported
498 * This attribute will be set when keys are determined through
499 * WPS or similar so that they may be exported.
503 #ifdef CONFIG_HT_OVERRIDES
505 * disable_ht - Disable HT (IEEE 802.11n) for this network
507 * By default, use it if it is available, but this can be configured
508 * to 1 to have it disabled.
513 * disable_ht40 - Disable HT40 for this network
515 * By default, use it if it is available, but this can be configured
516 * to 1 to have it disabled.
521 * disable_sgi - Disable SGI (Short Guard Interval) for this network
523 * By default, use it if it is available, but this can be configured
524 * to 1 to have it disabled.
529 * disable_ldpc - Disable LDPC for this network
531 * By default, use it if it is available, but this can be configured
532 * to 1 to have it disabled.
537 * disable_max_amsdu - Disable MAX A-MSDU
539 * A-MDSU will be 3839 bytes when disabled, or 7935
540 * when enabled (assuming it is otherwise supported)
541 * -1 (default) means do not apply any settings to the kernel.
543 int disable_max_amsdu;
546 * ampdu_factor - Maximum A-MPDU Length Exponent
548 * Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
553 * ampdu_density - Minimum A-MPDU Start Spacing
555 * Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
560 * ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
562 * By default (empty string): Use whatever the OS has configured.
565 #endif /* CONFIG_HT_OVERRIDES */
567 #ifdef CONFIG_VHT_OVERRIDES
569 * disable_vht - Disable VHT (IEEE 802.11ac) for this network
571 * By default, use it if it is available, but this can be configured
572 * to 1 to have it disabled.
577 * vht_capa - VHT capabilities to use
579 unsigned int vht_capa;
582 * vht_capa_mask - mask for VHT capabilities
584 unsigned int vht_capa_mask;
586 int vht_rx_mcs_nss_1, vht_rx_mcs_nss_2,
587 vht_rx_mcs_nss_3, vht_rx_mcs_nss_4,
588 vht_rx_mcs_nss_5, vht_rx_mcs_nss_6,
589 vht_rx_mcs_nss_7, vht_rx_mcs_nss_8;
590 int vht_tx_mcs_nss_1, vht_tx_mcs_nss_2,
591 vht_tx_mcs_nss_3, vht_tx_mcs_nss_4,
592 vht_tx_mcs_nss_5, vht_tx_mcs_nss_6,
593 vht_tx_mcs_nss_7, vht_tx_mcs_nss_8;
594 #endif /* CONFIG_VHT_OVERRIDES */
597 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity
599 * This timeout value is used in AP mode to clean up inactive stations.
600 * By default: 300 seconds.
602 int ap_max_inactivity;
605 * dtim_period - DTIM period in Beacon intervals
611 * beacon_int - Beacon interval (default: 100 TU)
616 * auth_failures - Number of consecutive authentication failures
618 unsigned int auth_failures;
621 * disabled_until - Network block disabled until this time if non-zero
623 struct os_reltime disabled_until;
626 * parent_cred - Pointer to parent wpa_cred entry
628 * This pointer can be used to delete temporary networks when a wpa_cred
629 * that was used to create them is removed. This pointer should not be
630 * dereferences since it may not be updated in all cases.
635 #endif /* CONFIG_SSID_H */